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Custom Lens Shapes for Eyewear 

Makej Projects 

Custom Lens Shapes for 

Written By: Kiers 


Inkscape or other vector graphics editor 4" x 6" plexiglass/acrylic sheet (1) 


Laser cutter (1) 


Do you wear glasses? Most opticians have eyeglass frames that are all a variation on the 
standard flat long (side-to-side) rectangle scheme. This may be fine for people with skinny 
long faces, but it's unsuitable for other face types. 

Rimless lenses can be ANY shape you desire (even shapes that you don't find at the 
opticians). This guide inspires you to make your own lens shape to better suit your face. You 
can use the dummy lens you create to make your actual rimless glasses. 

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Custom Lens Shapes for Eyewear 

Step 1 — Custom Lens Shapes for Eyewear 

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Custom Lens Shapes for Eyewear 

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• Take a good picture of your face 
without glasses. 

• Import the picture into Inkscape or 
other vector graphics software. 
Keep the picture as the bottom 
layer of the graphics. You will 
create your lenses on top of this. 

• Draw a lens shape (preferably 
using the "bezier tool" or a 
predetermined geometric tool) 
around your eyes in the image. 

• My motivation was to choose a 
shape which echoes my jaw 
shape and fits the eye-socket 

• You can see in the image that 
for my wide-ish face, I needed 
some type of "geometric" 
design. I chose smooth on top, 
and more like the half of a stop 
sign on the bottom. But, the 
outside slopes were chosen to 
be parallel to a portion of my jaw 
line. The inner slope matches 
the slope of where my cheeks 
begin below my eye. 

• You can choose a similar 
strategy, or use whatever 
geometric shape you think looks 
COOL (e.g., a "sprockets" 

• After you are satisfied with the lens 
shape, duplicate the SAME shape 
for your other eye, flip it about its 
vertical axis and move it over the 

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Custom Lens Shapes for Eyewear 

image of your other eye. 
• Check the dimension of your 
lenses in your graphics software. 
Inkscape allows you to measure 
the size of your drawing in pixels, 
inches, or centimeters. If you've 
been wearing eyeframes for some 
time, you may be familiar with your 
favorite frame size, e.g., 51/18/140. 
That's 51mm lens size. When 
sizing, be sure you drag the picture 
elements so that they scale 

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Custom Lens Shapes for Eyewear 
Step 2 

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Custom Lens Shapes for Eyewear 

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• All systems go so far? Then you 
are ready for laser cutting. Get 
access to a laser cutter (if you visit 
maker f aires you will meet these 
guys who run "hacker spaces") or 
just Google for commercial 

• If you like, take a paper printout 
in 1 :1 size of the lenses. (Just 
print the top layer of your 
graphics drawing.) 

• Cut out the paper lenses and do 
a physical trial on your face. If 
all is well go to next step, else 
go back to the software and alter 
the shape. 

• Give your lenses-layer-only 
graphics file to the laser cutter. 
Ask if he or she accepts 
Inkscape's .svg format or else 
convert the Inkscape .svg to the 
format the laser cutter wants. 

• Take one of the resulting acrylic 
sheet "dummy lenses" (like the one 
shown in the photo) and give it to a 
willing optician. 

• All commercial opticians use an 
automatic routing/tracing 
machine to cut the actual 
prescription lens for a rimless 
frame using the dummy lens that 
is already in their frame at the 
shop. You need an optician that 
will instead accept your custom 
dummy lens. 

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Custom Lens Shapes for Eyewear 

Step 3 

• I have found a nice, competent, 
and inexpensive optician online 
who accepted my dummy- 
lenses-based order: . 

# Get your rimless glasses back and 
voila, you're all set with your 
custom shape. 

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